B2U4语法学案(1)VIP专享VIP免费

Pre-learningplanUnit4StageandscreenUsinglanguage【教学目标】1.掌握本课的重要词汇与句式；2.使学生能够了解并掌握现在分词作状语的用法，并在真实语境中运用。【教学重难点】使学生能够了解并掌握现在分词作状语的用法，并在真实语境中灵活运用。【教学过程】Step1课前自学一、知识梳理Activity11.Lookatthesentencesfromthereadingpassageandanswerthequestions.a.HavingseenquiteafewproductionsofHamletandreadtheplaymanytimes,Iwasfullofconfidence–untilthePekingOperacametotown!b....seeingthemaincharacterscomeonstage,Iwassurprised!(1)Insentence(a),whohadseenquiteafewproductionsofHamletandreadtheplaymanytimes?(Answer:I)Insentence(b),whosawthemaincharacterscomeonstage?(Answer:I)(2)IsthisstructureusedmoreofteninspokenorwrittenEnglish?(Answer:It’susedmoreofteninwrittenEnglish.)2.Comparethemwiththefollowingsentencesandanswerthequestions.c.SinceIhadseenquiteafewproductionsofHamletandreadtheplaymanytimes,Iwasfullofconfidence–untilthePekingOperacametotown!d....whenIsawthemaincharacterscomeonstage,Iwassurprised!(3)Whatisthedifferencebetweenthetwogroupsofsentences?(Answer:Thefirstgroupusespresentparticiplesasadverbialwhilethesecondgroupusesadverbialclauses.)(4)Whydoestheauthorchoosetousesentences(a)and(b)inthereadingpassage?(Answer:Becausethesentencesfromthereadingpassagearemoreconciseandformal.)Nowlookformoresentenceswiththisstructureinthereadingpassage.二、主要用法精讲现在分词用作状语时，可以表示谓语动作发生的时间、原因、条件、让步、方式、伴随、程度和结果。例如：1)作时间状语Seeingthepolice,hemadearunfortheexit.(一看到警察，他就朝出口奔去。）2)作原因状语Beingwelltakencareof,sherecoveredsoon.(由于受到了很好的照顾，她身体恢复得很快。）3)作条件状语Itwilltakeyouhalfanhourtogettothestationallowingfortrafficdelays.(把路上的交通延误算进去，你要用半小时才能到车站。）4)作让步状语Grantingthistobetrue,wecannotexplainit.(虽然我们承认这是事实，却无法予以说明。）5)作方式状语Yougavemesuchafrightcreepinguponmelikethat!(你那样不声不响地从后面过来，吓了我一跳！)6)作伴随状语Thelittleboywentupstairs,trailinghisteddybearbehindhim.(那个小男孩走上楼去，身后拖着他的玩具熊。）7)作程度状语现在分词作程度状语的用法有限，相当于程度副词，主要用于加强语气。Hewascaughtintheheavyrainandgothisclothessoakingwet.(他淋了一场大雨，把衣服全部弄湿了。）8)作结果状语Thechildfell,strikinghisheadagainstthedoorandcuttingit.(那孩子跌倒了，头碰在门上磕破了。）Step2语法探究（1）动词-ing形式作时间、原国、条件、让步状语时多位于句首：作结果、伴随状语时常位于句末。（2）动词-ing形式是非谓语动词的一种，它有自己的时态。havingdone是动词-ing形式的完成时态，可以做状语：当该动词先于主句的谓语动词之前发生时，选择havingdone的形式。Step3完成动词-ing形式（短语）作状语作业一、同义句转换1.Afterwecleanedtherooms，webegantocleanupourdormitories.→________________therooms，webegantocleanupourdormitories.2.Becausehewasill,hecouldn’tbooktheflight.→________________,hecouldn’tbooktheflight.3.Mycarwascaughtinatrafficjam,whichcausedthedelay.→Mycarwascaughtinatrafficjam,________________thedelay.4.Whentheyheardtheirteacher’svoice,thepupilsstoppedtalkingatonce.→________________theirteacher’svoice,thepupilsstoppedtalkingatonce.5.IfyouworkharderatEnglish，youwillmakegreaterprogress.→________________harderatEnglish,youwillmakegreaterprogress.6.Althoughheworkedfrommorningtillnight,hestilldidn’tgetenoughfood.→________________frommorningtillnight,hestilldidn’tgetenoughfood...